70261L20PF

Memory IC Overview

The 70261L20PF is a high-speed 16K x 16 Dual-Port Static RAM with a 256 kbit storage capacity. It features a parallel asynchronous interface and operates within a voltage range of 4.5 V to 5.5 V. The component supports simultaneous access to the same memory location via true dual-ported cells. It includes on-chip port arbitration logic, semaphore signaling support, and busy/interrupt flags. The device is housed in a 100-pin TQFP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations from both ports.
• Integrated hardware support for semaphore signaling and automatic power-down modes controlled by chip enable signals.
• Separate upper-byte and lower-byte control lines designed for multiplexed bus compatibility and expanded data width configurations.

Memory IC Applications

• Stand-alone dual-port memory systems requiring high-speed concurrent data access.
• Master/Slave dual-port RAM combinations for 32-bit or wider word processing architectures.
• Industrial control applications operating within extended temperature environments.

Memory IC Procurement Notes

Verify RoHS compliance status as documentation indicates non-compliance. Confirm moisture sensitivity level (MSL 3) handling requirements during assembly. Check for end-of-life notices or discontinuance notifications prior to final design approval. Ensure lead-free soldering processes align with component specifications if applicable.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data transfer is required without external arbitration overhead. Consider the 100-pin TQFP footprint for surface-mount integration. Evaluate power consumption limits against the specified maximum supply current. Verify that the 20 ns access time meets system timing constraints.

Memory IC Part Context

This part belongs to the Renesas 70261 series of high-speed dual-port SRAMs. It shares architectural similarities with variants like the 70261L15PFGI but differs in access speed and specific suffix designations. The series is designed for robust standalone or cascaded memory applications in demanding electronic environments.

Memory IC Replacement Considerations

Direct substitutes include the 70261L20PFGI variant which offers identical electrical characteristics with lead-free certification. Other family members such as the 70261L15PFGI provide faster access times but require verification of pinout and timing compatibility.